American Car Craft Mustang False Firewall Polished V8 & GT 5.0 2011-2012 User Manual
Page 2
2. You will notice a heavy ground cable bolted to the wiper cowl. Remove this cable and re-
bolt it to the underside making sure that the cable is routed sideways and no longer
protrudes forward.
3. The battery cables must be routed so that they run behind the battery. Do this by simply
loosening the cables and turn them both towards the cars firewall. Also be sure that the
harness that runs towards the fuse box is tucked nice and tight to the battery tray. NOTE:
This cable may have to be detached from the cable that runs along the firewall.
4. Remove the four retainers fastening the wiper cowl to the wiper cowl ridge and set aside.
The two most center holes exposed will need to be re-drilled just behind their original
location. You can do this by lifting the plastic cowl up and out of the way enough to
allow you to pilot a small 9/64
th
hole to establish the new location then drill a larger hole
to match the original hole. Before setting your new firewall in place look over everything
to make sure there isn’t any other cables or hoses that may need to be tucked out of the
way.
5. You are now ready for installation. With the help of a friend slip the new firewall into
position behind the engine. Pulling the top of the firewall forward to allow the top of the
firewall to slip under the wiper cowl ridge. At this point you will want to use a scratch
awl or small screwdriver to line up all the holes in the ridge with the holes in the firewall.
Now take a look at the overall fit and also the pitch of the bends in the firewall and take
visual notes of any changes that may be necessary then remove the firewall and make any
adjustment.
6. Reposition the firewall after any and all adjustments have been made. Align all four holes
once again and pulling upwards on the new firewall place the factory plastic cowl retainer
that you removed earlier in thru the original and the newly drilled holes directly into and
thoroughly thru the new firewall and then force the center locking pin back into the
retainer to lock the retainer to the firewall. Do these at all four locations.
7. Remove protective liner.
Note: Care must be taken when cleaning your panel. It is a good idea to lightly dust your
panel with a clean soft cloth first in order to prevent any particles from scratching it.
Then wipe (using a new clean soft cloth) with a good quality streak free glass cleaner.
If any questions occur during installation, please contact American Car Craft at
727-861-1500.
Thank you and enjoy your new panel.
AMERICAN CAR CRAFT
18924 SAKERA ROAD-HUDSON FLORIDA 34667
Phone # 727-861-1500 Fax # 727-861-1520